Results 1 to 10 of about 2,975 (126)

Dynamics design of mechanism of crane trolley movement [PDF]

open access: yesTransport, 2006
A crane trolley with a hanging oscillating load was considered. Normal and tangential acceleration of the load and difference between the weight of the load and the strain of the rope are taken into account. Three differential dynamic equations were made.
V. Demokritov, A. Oleshkevich
doaj   +10 more sources

Minimization of oscillations of the tower crane slewing mechanism in the steady-state mode of trolley movement [PDF]

open access: yesArchive of Mechanical Engineering, 2023
In the present study, the problem of optimization of the motion mode of the tower crane's slewing mechanism in the steady-state mode of trolley movement is stated and solved.
Viacheslav Loveikin   +4 more
doaj   +2 more sources

Optimization of the trolley mechanism acceleration during tower crane steady slewing [PDF]

open access: yesArchive of Mechanical Engineering, 2022
The article describes optimization of the process of acceleration of the tower crane trolley movement mechanism during the steady mode of the slewing mechanism.
Viacheslav Loveikin   +3 more
doaj   +1 more source

The dynamic analysis of the joint trolley movement and hoisting mechanism in the tower crane

open access: yesStrength of Materials and Theory of Structures, 2022
The task of this paper is to research the simultaneous use of trolley and hoisting mechanism by the tower crane with a beam jib. To conduct research, a dynamic model of joint movement of mechanisms has been developed, which takes into account the main movement of drive mechanisms and oscillating movement of the load on a flexible suspension and links ...
Viacheslav Loveikin   +4 more
openaire   +3 more sources

Analysis of the effectiveness of using the block for limiting the vibrations of the load on the mechanism of movement of the bogie with various control systems [PDF]

open access: yesE3S Web of Conferences, 2020
Damping load vibrations in an electric crane drive is an urgent topic for research. The swinging load has a negative effect on the mechanical part of the device, leading to its wear, and on the entire control system as a whole.
Meshcheryakov Viktor   +3 more
doaj   +1 more source

Analysis of the effectiveness of using state observers in the control system of the traveling mechanism of the bridge crane trolley [PDF]

open access: yesE3S Web of Conferences, 2020
This article discusses the frequency control systems of an asynchronous electric drive with various types of observers that are promising for the movement mechanism of the bridge crane trolley.
Meshcheryakov Viktor   +3 more
doaj   +1 more source

Peculiarities of overhead crane movement mechanism operation when powered by a basbar's trolley at action of higher current harmonics

open access: yesElectrical Engineering and Power Engineering, 2022
Цель работы. Анализ и исследование взаимосвязанных электромагнитных процессов между электроприводами механизма перемещения мостового крана и троллеями шинопровода в условиях действия высших гармоник тока, с учетом конструктивных особенностей, нелинейности магнитных и электрофизических свойств материалов, эффектов близости, поверхностных и внешних ...
Kotsur, M.І   +3 more
openaire   +3 more sources

Analisys of experimental studies of optimal control of tower crane trolley movement mechanism

open access: yesNaukovij žurnal «Tehnìka ta energetika», 2020
The article describes the laboratory model of the tower crane boom system, measuring and recording equipment (sensors, data collection system, power supply, etc.), power control equipment (frequency inverter), and software for data collection and for the frequency inverter control.
V. S. Loveikin   +2 more
openaire   +2 more sources

Analisys of experimental studies of optimal control of tower crane slewing and trolley movement mechanisms

open access: yesNaukovij žurnal «Tehnìka ta energetika», 2020
The article analyzes the quality of the implementation of the optimal laws of simultaneous motion of the tower crane slewing and the trolley movement mechanisms. The estimation was carried out according to the maximum and root-mean-square values of the deviations of the theoretical and experimental characteristics.
V. S. Loveikin   +2 more
openaire   +2 more sources

Modeling and simulation of quay crane control system for PID controller optimal parameters determination / Krantinės krano valdymo sistemos kompiuterinis modeliavimas optimalioms PID valdiklio vertėms nustatyti

open access: yesMokslas: Lietuvos Ateitis, 2016
The main control object of Quay crane, which is operating in seaport intermodal terminal cargo loading and unloading process, is the crane trolley. One of the main frequent problem, which occurs, is the swinging of the container.
Tomas Eglynas   +4 more
doaj   +1 more source

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